Foreach with if repeating results

I do an if for control the first row of my foreach but when i execute, the echo shows 3 times the same thing

    foreach ($fotoscards as $fotos) {
                $i == 1;
                if ($i == 1) {

                    echo "[{image:", $fotos , '},';
                    $i++;

                }
                else echo '{image:', $fotos , '},';
                    $i++;


            }

And the output is:

{image:pics/570212366814_1008100572561339_77379992_n3.jpg},[{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:},{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:},{image:pics/655210502212_694548387334477_1457367303128125710_n.jpg},{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:},{image:pics/655210502212_694548387334477_1457367303128125710_n.jpg},{image:pics/154212308582_908192572599216_6538482440643426144_n.jpg},{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:},{image:pics/655210502212_694548387334477_1457367303128125710_n.jpg},{image:pics/154212308582_908192572599216_6538482440643426144_n.jpg},{image:},{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:},{image:pics/655210502212_694548387334477_1457367303128125710_n.jpg},{image:pics/154212308582_908192572599216_6538482440643426144_n.jpg},{image:},{image:},{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:},{image:pics/655210502212_694548387334477_1457367303128125710_n.jpg},{image:pics/154212308582_908192572599216_6538482440643426144_n.jpg},{image:},{image:},{image:pics/7593uphol1.jpg},

I want the output are:

[{image:pics/570212366814_1008100572561339_77379992_n3.jpg},{image:pics/655210502212_694548387334477_1457367303128125710_n.jpg},{image:pics/154212308582_908192572599216_6538482440643426144_n.jpg},{image:pics/7593uphol1.jpg},